A high resolution scanner apparatus has a disc upon which is mounted an original to be scanned. The disc may include a track for providing high accuracy tracing of the original. If the original is transparent, such as a photographic film, the disc may include a transparent first disc upon which the original...http://www.google.fr/patents/US5589952?utm_source=gb-gplus-shareBrevet US5589952 - Disc high resolution scanner
